Viyat Varun Upadhyay. MACHINING PARAMETERS OPTIMIZATION BY GREY RELATIONAL ANALYSIS OF ALLOY STEEL AISI 4140. J Arch.Egyptol [Internet]. 2020 Dec. 2 [cited 2025 Nov. 4];17(7):4107-21. Available from: https://www.archives.palarch.nl/index.php/jae/article/view/2311